Benchmark: Memoized DisplayNames vs. Inline DisplayNames

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.1/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js"></script>
<div id="root"></div>

Script Preparation code:

function ComponentWithoutMemo() {
    const dn = new Intl.DisplayNames(['es'], { type: "language" });
    return React.createElement('button', {}, dn.of('en'));
}

function ComponentWithMemo() {
    const dn = React.useMemo(() => new Intl.DisplayNames(['es'], {
        type: "language"
    }), []);
    return React.createElement('button', {}, dn.of('en'));
}

Tests:

Without Memo
ReactDOM.render(React.createElement(ComponentWithoutMemo), document.getElementById('root'))
With memo
ReactDOM.render(React.createElement(ComponentWithMemo), document.getElementById('root'))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Without Memo
With memo

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

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Let's dive into the world of JavaScript microbenchmarks and explore what's being tested in this specific benchmark.

**Benchmark Overview**

The provided JSON represents a benchmark that compares two approaches to rendering display names in React components. The benchmark is designed to measure the performance difference between using memoized display names (with `React.useMemo`) and inline display names.

**Options Being Compared**

There are two options being compared:

1. **ComponentWithoutMemo**: This approach uses an inline `Intl.DisplayNames` instance, which is created directly in the component function.
2. **ComponentWithMemo**: This approach uses memoized display names with `React.useMemo`, which creates a cached instance of `Intl.DisplayNames` that can be reused.

**Pros and Cons**

* **ComponentWithoutMemo**:
	+ Pros: Simple and straightforward implementation, no additional dependencies required.
	+ Cons: The display name instance is recreated on every render, leading to unnecessary computations and potential performance issues.
* **ComponentWithMemo**:
	+ Pros: Memoization reduces the number of computations and cache hits, improving performance.
	+ Cons: Requires an additional dependency (`[]`) in `React.useMemo` to track when the memoized value should be recalculated.

In general, using memoized display names with `React.useMemo` is a good practice, especially when dealing with computationally expensive operations. However, it's essential to weigh the benefits against any potential added complexity or dependencies.

**Library: Intl.DisplayNames**

The `Intl.DisplayNames` library is used to resolve language-specific display names for locales. In this benchmark, it's used to render display names for the 'es' locale (Spanish).

**Special JS Feature/ Syntax: React.useMemo**

The `React.useMemo` hook is used in the `ComponentWithMemo` approach to memoize the display name instance. This feature was introduced in React 16.8 and allows developers to cache values that depend on specific dependencies.

**Other Alternatives**

If you're looking for alternative approaches, consider:

1. **Using a library like react-intl**: This library provides a more extensive set of features for internationalization and localization, including display name management.
2. **Implementing custom memoization mechanisms**: If you prefer to avoid using `React.useMemo`, you can implement your own memoization mechanism using techniques like caching or dependency tracking.

In summary, this benchmark compares the performance of two approaches to rendering display names in React components: inline and memoized. The memoized approach uses `React.useMemo` to reduce computations and improve performance.

Related benchmarks:

Memoized DisplayNames vs. Inline DisplayNames (version: 0)

Comparing performance of: Without Memo vs With memo

Created: 3 years ago by: Guest

Jump to the latest result

Without Memo

With memo

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):